Rapid deicing equipment after nuclear magnetic resonance quenching
By designing heating and accelerating components, high-temperature and high-speed gas is used to quickly remove the ice layer after the nuclear magnetic resonance equipment loses its quench, solving the problem of low de-icing efficiency in existing technologies and ensuring that the equipment can quickly return to normal operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-14
AI Technical Summary
The ice layer that forms after quenching in existing MRI equipment is difficult to remove quickly and effectively, leading to decreased equipment performance and malfunctions, which affects diagnosis and treatment.
A rapid de-icing device for nuclear magnetic resonance after quench is designed. The device heats the gas through a heating element and accelerates the high-temperature, high-speed gas to act on the ice layer using an acceleration element. The device includes a heating chamber, a heating zone, and a spiral guide plate to enhance the contact and impact force between the gas and the ice layer.
It enables rapid and effective removal of ice, shortens equipment downtime, and ensures that the equipment can quickly return to normal operation.
Smart Images
Figure CN224114775U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of nuclear magnetic resonance structure maintenance equipment, and more particularly to a rapid de-icing device after nuclear magnetic resonance quench. Background Technology
[0002] Magnetic resonance imaging (MRI) is an advanced medical imaging diagnostic tool that plays a vital role in clinical medicine. It utilizes the signals generated by the resonance of atomic nuclei within a magnetic field to reconstruct images, providing detailed and clear images of internal tissues and organs. This helps doctors accurately diagnose various diseases, especially in the diagnosis of diseases of the nervous system, cardiovascular system, and tumors, where it has irreplaceable advantages.
[0003] However, a critical problem exists in the operation of MRI equipment—quench loss. Quench loss occurs when the superconducting magnet loses its superconducting properties due to various reasons, causing a rapid decay of the current within the magnet and a sharp drop in the magnetic field strength. When quench loss occurs, the liquid helium in the magnet rapidly vaporizes, producing a large amount of cryogenic gas. This cryogenic gas condenses around the magnet, eventually forming an ice layer inside the equipment. The presence of this ice layer not only affects the normal operation of the equipment, leading to a decline in performance and potentially causing equipment failure and serious economic losses, but it can also delay patient diagnosis and treatment.
[0004] Currently, common de-icing methods for ice layers formed after MRI quench are inefficient and often require a long time to complete. For example, traditional natural heating de-icing relies on ambient temperature to gradually melt the ice layer, which is time-consuming and cannot meet the need for rapid equipment recovery. Manual de-icing methods are not only complex and labor-intensive, but may also damage the internal structure of the equipment. Therefore, developing a device that can quickly and effectively remove ice layers formed after MRI quench is of significant practical importance.
[0005] This invention relates to a rapid de-icing device for MRI machines after quench failure, designed to address the inefficiencies of existing de-icing technologies. Through innovative design and technical means, it enables the rapid removal of ice layers from MRI machines after quench failure, ensuring that the equipment can quickly return to normal operation and providing strong support for the smooth conduct of medical diagnostic work. Utility Model Content
[0006] To address the problems existing in the prior art, this utility model provides a rapid de-icing device after nuclear magnetic resonance quench, comprising:
[0007] A heating element is provided with an air inlet and an air outlet. Gas enters the heating element through the air inlet, the heating element heats the gas, and the heated gas is discharged through the air outlet.
[0008] An accelerator is connected to the air outlet via a pipe, and the gas is accelerated by the accelerator.
[0009] Optionally, in some embodiments of this application, the heating element includes:
[0010] A heating chamber is provided, which is connected to the air inlet and the air outlet. The gas enters the heating chamber through the air inlet and is discharged through the air outlet.
[0011] The first heating zone is located on both sides of the heating chamber, and is positioned close to the air inlet. The first heating zone heats the air inside the heating chamber.
[0012] The second heating zone is located on both sides of the heating cavity, close to the first heating zone, and heats the air inside the heating cavity.
[0013] Optionally, in some embodiments of this application, the first heating zone includes a plurality of first heating elements, which are arranged in a ring around the periphery of the first heating zone.
[0014] Optionally, in some embodiments of this application, a temperature sensor is provided in the first heating zone, the temperature sensor is connected to a control terminal, the control terminal is connected to multiple first heating elements, and the control terminal controls the first heating elements to heat up according to the value of the temperature sensor.
[0015] Optionally, in some embodiments of this application, the second heating zone includes a plurality of second heating elements, which are arranged in a ring around the periphery of the second heating zone.
[0016] Optionally, in some embodiments of this application, a spiral guide plate is provided between the second heating zone and the gas outlet. The spiral guide plate is spirally arranged in the heating chamber, and the heated gas is discharged from the gas outlet through the spiral guide plate.
[0017] Optionally, in some embodiments of this application, the spiral guide plate is in the shape of a conical structure, and the radius of the end of the spiral guide plate away from the air outlet is greater than the radius of the end of the spiral guide plate closer to the air outlet.
[0018] Optionally, in some embodiments of this application, a gas storage area is provided between the second heating zone and the spiral guide plate, and the gas storage area stores the heated gas.
[0019] A heating element is installed in the gas storage area to heat the gas.
[0020] Optionally, in some embodiments of this application, the heating element is configured as a heating rod.
[0021] Optionally, in some embodiments of this application, the accelerating element includes an accelerating tube, which is provided with a collection area, an accelerating area and a diffusion area, wherein the collection area is connected to the diffusion area through the accelerating area;
[0022] The cross-sectional areas of the collection region and the diffusion region gradually decrease in the direction toward the acceleration region;
[0023] The collection area is connected to the pipeline.
[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0025] 1. The de-icing equipment rapidly heats the gas using a heating element and accelerates it with an accelerator, enabling the high-temperature, high-speed gas to quickly act on the ice layer formed after the MRI equipment experiences a quench. The spiral guide plates installed in the first and second heating zones of the heating element, as well as between the second heating zone and the gas outlet, ensure that the gas is fully and efficiently heated within the heating chamber. Simultaneously, the spiral guide plates guide the gas to form a rotating airflow, increasing the contact area and impact force between the gas and the ice layer, significantly improving de-icing efficiency. This effectively shortens the downtime of the MRI equipment.
[0026] 2. The accelerating tube of the accelerator is equipped with a collection zone, an acceleration zone, and a diffusion zone, and the cross-sectional area of the collection zone and the diffusion zone gradually decreases in the direction towards the acceleration zone. This unique structural design allows the gas to be effectively gathered when it enters the collection zone, then accelerated by the pressure difference in the acceleration zone, and finally acts on the ice layer with a high speed and a large coverage area in the diffusion zone. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is an overall structural diagram of the rapid de-icing device after nuclear magnetic resonance quench provided in an embodiment of this application;
[0029] Figure 2 This is a schematic diagram of the internal structure of the heating element provided in the embodiments of this application;
[0030] Figure 3 This is a schematic diagram of the internal partial structure of the heating element provided in the embodiments of this application;
[0031] Figure 4 This is a schematic diagram of the internal structure of the accelerator provided in an embodiment of this application.
[0032] Explanation of reference numerals in the attached figures:
[0033] 100, Heating element; 110, Air inlet; 120, Air outlet; 130, Heating chamber; 140, First heating zone; 141, First heating element; 142, Temperature sensor; 143, Control terminal; 150, Second heating zone; 151, Second heating element; 200, Accelerating element; 210, Collection zone; 220, Accelerating zone; 230, Diffusion zone; 300, Pipeline; 400, Spiral guide plate; 500, Gas storage zone; 510, Heating component. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.
[0035] Specifically, such as Figures 1-4 As shown, this application provides a rapid de-icing device for MRI after quenching. This device can be used to heat up the MRI machine to facilitate de-icing. The device mainly includes a heating element 100, which is generally configured as a square box. A heating chamber 130 is provided inside the heating element 100. The heating chamber 130 can heat the air. In this application, the air is helium, which is stored in a gas cylinder. The gas cylinder interface is connected to the air inlet 110 on the heating element 100 through a pipe 300. The air inlet 110 is connected to the heating chamber 130, allowing the helium to enter the heating chamber 130. A first heating zone 140 and a second heating zone 150 are arranged sequentially on both sides of the heating chamber 130. Both the first heating zone 140 and the second heating zone 150 can heat the helium to make it high-temperature helium. In this application, the temperature of the high-temperature helium is set to 200 degrees Celsius.
[0036] The first heating zone 140 is located on both sides of the heating cavity 130, and is positioned close to the gas inlet 110. This allows the first heating zone 140 to directly heat the helium when it enters the heating cavity 130. In this embodiment, the first heating zone 140 is provided with a plurality of first heating elements 141, which are arranged in a ring around the periphery of the heating cavity 130. This allows the heating cavity 130 to be heated from all sides by the first heating elements 141, creating a uniform heating environment that enables the helium to heat up rapidly.
[0037] To facilitate heating helium to a specified temperature, temperature monitoring of the helium within the heating chamber 130 is required. In this embodiment, a temperature sensor 142 is provided within the heating chamber 130, enabling it to detect the temperature at which the first heating element 141 heats the helium. Simultaneously, a control terminal 143 is provided within the first heating zone 140, electrically connected to the temperature sensor 142 and the first heating element 141. When the temperature sensor 142 detects a low temperature within the first heating zone 140, the control terminal 143 can increase the temperature of the first heating element 141 to rapidly heat the helium. Conversely, when the temperature sensor 142 detects a high temperature within the first heating zone 140, the control terminal 143 can shut down the first heating element 141, stopping its heating process. This allows the room-temperature helium and high-temperature helium in the gas cylinder to mix, facilitating the reduction of the high-temperature helium's temperature.
[0038] In the above embodiment, the first heating element 141 is generally configured as an electric heating wire. The current of the electric heating wire is controlled by the control terminal 143, which facilitates the adjustment of the heating temperature of the electric heating wire.
[0039] Meanwhile, in this embodiment, a second heating zone 150 is also provided. The second heating zone 150 is located on one side of the first heating zone 140. The overall structure of the second heating zone 150 is the same as that of the first heating zone 140. A second heating element 151 is provided in the second heating zone 150. The second heating element 151 is arranged in a ring around the periphery of the second heating cavity 130. A temperature sensor 142 is provided in the second heating zone 150. It has the same function as the first heating zone 140. In the second heating zone 150, the control terminal 143 controls the temperature of the second heating element 151 according to the data of the temperature sensor 142, so as to facilitate the heating control of helium.
[0040] In the above embodiment, the second heating element 151 is configured as an electric heating wire. The current of the electric heating wire is controlled by the control terminal 143, which facilitates the adjustment of the heating temperature of the electric heating wire.
[0041] In this embodiment, the first heating zone 140 and the second heating zone 150 are provided to perform secondary heating of helium, and the first heating zone 140 and the second heating zone 150 are heated independently of each other, which facilitates effective temperature control of helium and improves the heating efficiency of helium.
[0042] Meanwhile, in this embodiment, a spiral guide plate 400 is also provided. The spiral guide plate 400 is positioned between the gas outlet 120 and the second heating zone 150. The gas outlet 120 is connected to the heating chamber 130, and the spiral guide plate 400 is disposed inside the heating chamber 130 and spirally arranged. After helium gas is heated, it is discharged from the gas outlet 120 through the spiral guide plate 400.
[0043] In this application, the spiral guide plate 400 is configured as a conical structure, and the radius of the end of the spiral guide plate 400 away from the air outlet 120 is greater than the radius of the end of the spiral guide plate 400 close to the air outlet 120.
[0044] In this embodiment, a gas storage area 500 is also provided. The gas storage area 500 is entirely disposed within the heating chamber 130. Specifically, the gas storage area 500 is located between the spiral guide plate 400 and the second heating zone 150. A gas tank is disposed within the gas storage area 500. The gas tank stores the heated gas. Valve openings are provided at both ends of the gas tank. One valve opening is positioned corresponding to the second heating zone 150, allowing helium to enter the gas tank through this opening. The other valve opening is positioned corresponding to the spiral guide plate 400, allowing the helium in the gas storage area 500 to enter the spiral guide plate 400 through this opening, facilitating the discharge of high-temperature helium.
[0045] In the above, a heating element 510 is provided on the gas cylinder to heat the helium gas inside the gas cylinder. In this embodiment of the application, the heating element 510 is configured as a heating rod.
[0046] In the above, in order to facilitate the effective heating of helium by the gas tank, both valves are closed when the heating element 510 heats the air.
[0047] A corrugated hose is connected to an air outlet 120 on the heating element 100. An accelerator 200 is provided at one end of the corrugated hose away from the heating element 100. In this application, the accelerator 200 is configured as an acceleration tube, which is configured as a Laval tube structure. Specifically, it is configured with a collection zone 210, an acceleration zone 220 and a diffusion zone 230. The collection zone 210 is connected to the diffusion zone 230 through the acceleration zone 220. The cross-sectional areas of the collection zone 210 and the diffusion zone 230 gradually decrease in the direction towards the acceleration zone 220. The collection zone 210 is connected to a pipe 300.
[0048] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.
Claims
1. A rapid de-icing device after nuclear magnetic resonance quench failure, characterized in that, include: A heating element is provided with an air inlet and an air outlet. Gas enters the heating element through the air inlet, the heating element heats the gas, and the heated gas is discharged through the air outlet. An accelerator is connected to the air outlet via a pipe, and the gas is accelerated by the accelerator.
2. The rapid de-icing device after nuclear magnetic resonance quenching as described in claim 1, characterized in that, The heating element includes: A heating chamber is provided, which is connected to the air inlet and the air outlet. The gas enters the heating chamber through the air inlet and is discharged through the air outlet. The first heating zone is located on both sides of the heating chamber, and is positioned close to the air inlet. The first heating zone heats the air inside the heating chamber. The second heating zone is located on both sides of the heating cavity, close to the first heating zone, and heats the air inside the heating cavity.
3. The rapid de-icing device after nuclear magnetic resonance quench according to claim 2, characterized in that, The first heating zone includes a plurality of first heating elements, which are arranged in a ring around the periphery of the heating cavity.
4. The rapid de-icing device after nuclear magnetic resonance quench as described in claim 3, characterized in that, A temperature sensor is installed in the first heating zone. The temperature sensor is connected to a control terminal. The control terminal is connected to multiple first heating elements. The control terminal controls the heating elements to generate heat based on the temperature sensor readings.
5. The rapid de-icing device after nuclear magnetic resonance quench according to claim 2, characterized in that, The second heating zone includes a plurality of second heating elements, which are arranged in a ring around the periphery of the second heating zone.
6. The rapid de-icing device after nuclear magnetic resonance quench according to claim 5, characterized in that, A spiral guide plate is provided between the second heating zone and the gas outlet. The spiral guide plate is spirally arranged in the heating chamber, and the gas is discharged from the gas outlet after being heated through the spiral guide plate.
7. The rapid de-icing device after nuclear magnetic resonance quench according to claim 6, characterized in that, The spiral guide plate has a conical shape, and the radius of the end of the spiral guide plate away from the air outlet is larger than the radius of the end of the spiral guide plate closer to the air outlet.
8. The rapid de-icing device after nuclear magnetic resonance quench according to claim 6, characterized in that, A gas storage area is provided between the second heating zone and the spiral guide plate, and the gas storage area stores the heated gas. A heating element is installed in the gas storage area to heat the gas.
9. The rapid de-icing device after nuclear magnetic resonance quench according to claim 8, characterized in that, The heating element is configured as a heating rod.
10. The rapid de-icing device after nuclear magnetic resonance quench according to claim 1, characterized in that, The accelerating component includes an accelerating tube, which is provided with a collection area, an accelerating area and a diffusion area, and the collection area is connected to the diffusion area through the accelerating area. The cross-sectional areas of the collection region and the diffusion region gradually decrease in the direction toward the acceleration region; The collection area is connected to the pipeline.